KR101884282B1 - System and method for supplying an energy grid with energy from an intermittent renewable energy source - Google Patents

Abstract

The present invention relates to a system and method for supplying an energy grid using energy from an intermittently renewable energy source.
The present invention utilizes renewable energy generated by windmill or other Renewables. Renewable energy can be used to supply energy to regional or national energy grids. However, according to the present invention, at least a portion of the renewable energy is stored by using energy to produce hydrogen and nitrogen. Hydrogen and nitrogen are subsequently converted to ammonia, which is stored to be provided to the ammonia gas turbine. The gas turbine burns ammonia to produce energy for the energy grid. Unused process heat, e.g., waste heat, is collected from one or more appropriate first stages of the system and directed to one or more appropriate second stages of the system to improve the efficiency of the second stages. This improves the overall efficiency of the system.

Description

[0001] SYSTEM AND METHOD FOR SUPPLYING ENERGY GRID WITH ENERGY FROM AN INTERMITTENT RENEWABLE ENERGY SOURCE [0002]

It is an object of the present invention to provide a system and method for supplying energy grids using energy from an intermittent renewable energy source.

Although the uptake of renewable natural resources (renewables) for energy generation over the last few years has been impressive, it is still not easy to deal with the transient nature of Renewables There are unsolved problems. Both solar and wind power are intermittent in their nature and are therefore unable to provide a reliable dependable baseload on energy networks. Because energy consumers' demand may be irregular, the power supply based on Renewables does not meet consumer demand. Also, the amount of excess energy, that is, the amount of energy temporarily available from Renewables, but not required by consumers at that time, strains energy networks and can be lost if not consumed.

There are therefore conditions that the energy temporarily provided by the renewables is not sufficient to cover the demand. However, there will also be conditions in which the energy temporarily provided by Renewables exceeds current demand. As the proportion of energy from renewable sources increases, the situation becomes unsustainable.

A promising approach to addressing these drawbacks would be to use long term energy buffers or storages suitable for storing energy. Such a solution would allow for situations where excessive energy is available, as well as situations where demand exceeds available energy.

Although various buffering solutions for storing electrical energy are known, such as Lithium batteries and Vanadium based Redox batteries, these solutions are needed for the necessary energy storage scale of energy storage. Hydrogen provides another carbon free route for energy storage, but it is difficult and dangerous to exploit. In a gaseous form, it must be compressed to 500 bar to achieve the proper energy density. Liquid hydrogen requires cryogenic temperatures and associated complex infrastructures. In addition, the use of hydrogen in any form requires safeguards due to the risk of explosion. For these reasons, hydrogen is not considered a qualified candidate for energy storage.

Accordingly, there is currently no reliable and appropriate means to decouple the energy supply and demand for renewable energies on a local or national scale.

It is an object of the present invention to provide a solution for supplying an energy grid using energy from an intermittently renewable energy source.

This object is solved by a system and method according to the appended claims.

The present invention is based on an approach to storing at least some of the generated energy using a renewable. This is accomplished by using the energy to produce hydrogen and nitrogen. Hydrogen and nitrogen are subsequently converted to ammonia (NH ₃ ), which is a carbon-free fuel and can be stored at ambient temperatures. In addition, NH ₃ can be transported effectively and safely using pipelines, railroads, shipping, and trucks. NH ₃ also offers the advantage that it can be synthesized in a carbon-free process and burned without generating green house gases.

The present invention achieves decoupling of electricity supply and demand from fluctuating renewable energy sources by using renewable energy for the subsequent generation of ammonia which can be stored. The stored ammonia can then be used in an NH ₃ power generator to generate electricity supplied to the electrical grid. This integrated solution proposed by the present invention allows intermittent electricity to be translated to the base provided by a renewable energy source for a regional or national energy grid.

A further improvement is achieved by using waste heat generated during operation of the stage or component in the stage or component of the system. The waste heat is collected by the corresponding heat exchanger and is at least partially delivered to the other stages or components of the system, and its operation and efficiency may be at least improved or even required by the presence of elevated temperatures. This results in improved efficiency of the overall system.

Thus, the presence of an NH ₃ storage vessel as a buffer allows for better flexibility and thus improved load balancing to provide energy to the energy grid. In addition, the efficiency of the system and method is improved by using heat generated in one stage or component of the system by conveying at least a portion of the heat to another stage or component of the system.

The present invention can be applied for energy network operation based on renewable energies as well as local energy supply, grid stabilization of heavy industries and rural areas.

More particularly, the present invention relates to a method and system for providing energy for load balancing of an energy input for an energy grid based on intermittently renewable energy provided by an energy grid and provided by a renewable energy source. The system comprises:

- H ₂ -N ₂ - production unit for producing hydrogen and nitrogen, said H ₂ -N ₂ - production unit being operated using the energy provided by said renewable energy source,

A mixing unit configured to receive and mix hydrogen and nitrogen produced by the H ₂ -N ₂ - production unit to form a hydrogen-nitrogen-mixture,

- to produce a gas mixture containing NH ₃ hydrogen-NH ₃ source for receiving and processing the mixture-N NH ₃ source of hydrogen from the mixing unit - is fluidly connected to the mixing unit to receive nitrogen mixture, NH ₃ source is a hydrogen-nitrogen-configured to produce a gas mixture containing NH ₃ from the mixture, also NH ₃ source comprises NH ₃ storage vessel for storing at least a portion of the gas mixture of NH ₃ containing NH ₃ - ,

- NH ₃ generator for generating for energy grid energy - NH ₃ alternator NH ₃ storage and fluid connected to the NH ₃ storage vessel for receiving a gas stream (stream) containing the NH ₃ from the container, NH ₃ alternator energy grid And a combustion chamber for combusting the received NH ₃ of the gas stream to produce energy for use in the combustion chamber,

- a heat distribution system having one or more heat exchangers,

Each one of the one or more heat exchangers is assigned in thermal contact with at least one first component of one or more first components of the system to receive the heat of the process, Is waste heat or other heat generated during operation of the corresponding component from at least one first component assigned during operation of the at least one first component,

The heat exchanger of each one of the one or more heat exchangers is arranged and configured to deliver at least a portion of the received sequence of processes to a second component of at least one of the one or more second components of the system.

In this context, the relevant property of the first component of each of the first components is the generation of the column during operation of the first component. The heat generated by the first component is transferred to the corresponding heat exchanger due to thermal contact.

In this context, the relevant characteristic of the second component of each of the second components is at least one improved operation and / or efficiency when heat consumption or elevated operating temperature during operation of the second component can be provided. Both are accomplished by providing heat from the heat exchangers.

In addition, the first component of each of the one or more first components is assigned to and thermally contacted with at least one heat exchanger of one or more of the heat exchangers.

The first component of one or more of the first components may be an NH ₃ generator. Thus, the efficiency of the system is improved because the waste heat is redirected to the process.

In this application, the second component of one or more of the second components is a mixing unit, and the transferred portion of the process stream is utilized to mix hydrogen and nitrogen to promote the formation of a hydrogen-nitrogen-mixture. This increases the efficiency of the overall system.

The H ₂ -N ₂ -

A hydrogen electrolytic cell for producing hydrogen, a hydrogen electrolytic cell configured to receive energy produced by water and a renewable energy source and to produce hydrogen by electrolysis, and / or

- an air separation unit for producing nitrogen, and the air separation unit is configured to produce nitrogen by receiving the energy produced by the air and the renewable energy source and separating the received air.

This, to permit the production of hydrogen (H2) and nitrogen (N ₂₎ by taking advantage of the energy from the energy source Renew abrasion, and finally results in the ability to store the energy in the form of NH _3.

The first component of one or more of the first components may be a hydrogen electrolyzer. Thus, the efficiency of the system is improved because the waste heat is redirected to the process.

Mixing unit H ₂ -N ₂ for receiving the hydrogen and nitrogen produced in the internal-fluid may be connected to the production unit, the mixing unit is a hydrogen-mixer and NH ₃ for mixing hydrogen and nitrogen to form a mixture of nitrogen And a compressor for compressing the hydrogen-nitrogen-mixture from the mixer to form a compressed hydrogen-nitrogen-mixture to be directed to the source. Thus, the mixing unit provides a compressed H ₂ -N ₂ - mixture.

The second component of one or more of the second components may be a mixer wherein a portion of the process stream delivered to the mixer is utilized to promote the mixing of hydrogen and nitrogen. Thus, the efficiency of the system is improved because the waste heat is redirected to the process.

The NH ₃ source is configured to receive a hydrogen-nitrogen-mixture from the mixing unit and process the received hydrogen-nitrogen-mixture to form a NH ₃ -containing gas mixture by an exothermic chemical reaction, _Three reaction chambers, and the first component of one or more of the first components is an NH ₃ reaction chamber. The function of the NH ₃ reaction chamber is based on a chemical exothermic reaction and the corresponding waste heat produced during operation can be redirected to the system to improve efficiency.

The NH ₃ source may further comprise a separator for receiving a gas mixture comprising NH ₃ from the NH ₃ reaction chamber,

The separator is configured to separate NH ₃ from the gaseous mixture comprising NH ₃ to produce NH ₃ and the remaining hydrogen-nitrogen mixture,

- fluid separator is connected to the NH ₃ storage vessel to direct the produced NH ₃ to the NH ₃ storage vessel.

The use of a separator allows efficient production of NH ₃ .

In one embodiment, an additional reprocessing unit is available for reprocessing the remaining hydrogen-nitrogen-mixture using a recompressor and a second mixer,

A recompressor is fluidly connected to the separator to receive and compress the remaining hydrogen-nitrogen-mixture from the separator,

The second mixer is fluidly connected to the recompressor to receive the remaining compressed hydrogen-nitrogen mixture from the recompressor,

The second mixer is fluidly connected to the mixing unit to receive the hydrogen-nitrogen mixture from the mixing unit,

The second mixer is configured to mix the hydrogen-nitrogen-mixture from the mixing unit and the remaining compressed hydrogen-nitrogen-mixture from the recompressor to form a hydrogen-nitrogen-mixture to be fed to the NH ₃ source.

Use of the re-processing unit allows the recycling of the remaining H ₂ and N ₂ to form an additional NH _3.

The second component of one or more of the second components may be a second mixer. This increases the efficiency of the H ₂ -N ₂ - mixing process, as well as the efficiency of the overall system.

In an alternate embodiment, the separator remaining hydrogen-nitrogen-mixture can be connected fluid in the mixing unit to direct to the mixing unit from the separator, and the remaining hydrogen-nitrogen-mixture of hydrogen be a mixture received by the NH ₃ source-nitrogen They are mixed in hydrogen and nitrogen, and the mixing unit from the production units to form a H ₂ -N _2. This also allows to recycle the remaining H ₂ and N ₂ to form the addition of NH _3.

The system NH ₃ cracker may further comprise a (cracker), NH ₃ cracker is fluid connected to the NH ₃ storage vessel and the generator NH _3, NH ₃ cracker,

O receive the NH ₃ from the NH ₃ storage vessel

- partial cracking of NH ₃ accommodated to form an NH ₃ -hydrogen-mixture, and

- it is configured and arranged to direct a mixture of hydrogen-NH ₃ by the generator-NH ₃ for combustion.

The use of NH ₃ crackers allows to provide NH ₃ -hydrogen-gas mixtures to NH ₃ generators having better combustion characteristics.

The second component of one or more of the second components may be an NH ₃ cracker. This has the effect of higher efficiency of NH ₃ reforming since the working principle of the NH ₃ cracker is based on the consumption of heat. As a result, the overall efficiency of the system is improved.

The system may further include a main control unit for controlling the generation of the energy used to generate and / or NH ₃ generators of NH ₃ to be stored in the NH ₃ storage vessel.

For example, control may be achieved by adjusting the flow of energy provided to the H ₂ -N ₂ - production unit, as well as mixing, compressing, or other components that control or affect the production of H ₂ and N ₂ And / or by adjusting the temperature in the NH ₃ reaction chamber.

The main control unit may control the generation of energy by the configuration and arrangement, that can be connected, NH controlling and / or NH ₃ generators of the production of NH ₃ to be stored in the _third storage vessel to the corresponding component, at least energy grid And / or the amount of energy currently generated by the renewable energy source. This allows a flexible energy supply to react to the actual demands of the energy grid and, on the other hand, to store energy from renewable energy sources in the case of low demands.

The main control unit,

Preferably simultaneously reducing the production of NH _{3 to} be stored in the NH ₃ storage vessel during periods of low renewable energy input from the renewable energy source, which can be achieved by controlling the generation of a gas mixture comprising NH ₃ And / or to increase the production of energy,

Preferably, it can be configured to simultaneously increase the production of NH _{3 to} be stored in the NH ₃ storage vessel during high renewable energy input periods from the renewable energy source and / or to reduce the production of energy.

This also allows a flexible energy supply to react to the effective load balancing of the energy input to the energy grid and to the actual demand of the energy grid and, on the other hand, to store energy from renewable energy sources in the case of low demands.

Herein, the terms "low" and "high" may be referred to for certain given threshold values. That is, the low renewable energy input means that the actual renewable energy input is less than the first threshold, and the high renewable energy input means that the actual renewable energy input is greater than the second threshold. The first and second thresholds may be the same or different from each other.

The system further comprises an energy distribution unit, wherein the energy distribution unit is configured to receive the energy provided by the renewable energy source and to distribute energy to the energy grid and / or H ₂ -N ₂ - production unit, It depends on the energy demand situation of the grid. For example, if the energy demand from the energy grid is higher, the fraction of energy provided to the energy grid by the renewable energy source is higher and the remaining fraction provided to the system is lower. When the energy demand from the energy grid is lower, the fraction of energy provided to the energy grid by the renewable energy source is lower and the remaining fraction provided to the system is higher. This allows effective operation of the system and, as a result, allows load balancing of the energy input to the energy grid.

In a countermeasure for providing energy for load balancing of the energy input for the energy grid based on the intermittent renewable energy provided by the renewable energy source and for the energy grid,

At least a portion of the energy from the renewable energy source is used to produce hydrogen and nitrogen from the H ₂ -N ₂ - production unit,

The hydrogen and nitrogen produced are mixed in the mixing unit to form a hydrogen-nitrogen-mixture,

- a hydrogen-nitrogen mixture is processed in the NH ₃ source to produce a gas mixture containing NH ₃

NH ₃ of the gas mixture comprising NH ₃ is stored in an NH ₃ storage vessel,

- NH ₃ stream from the NH ₃ storage vessel is directed into the combustion chamber of the NH ₃ NH ₃ generator for combusting the stream of NH ₃ to produce the energy for the energy grid,

At least a part of the sequence of processes, e.g. waste heat generated during operation of the corresponding component, generated in the first component of at least one of the first components of the system during operation of the at least one first component, The column is passed to a second component of at least one of the one or more second components of the system.

The first component of one or more of the first components may be an NH ₃ generator.

One component of one or more of the second components may be a mixing unit, particularly a mixer of mixing units for mixing hydrogen and nitrogen to form a hydrogen-nitrogen mixture, wherein the transferred portion of the process heat comprises hydrogen and nitrogen It is used for mixing.

Hydrogen may be produced in a hydrogen cell of a H ₂ -N ₂ - production unit, and the first component of one or more of the first components is a hydrogen cell.

The NH ₃ source may include an NH ₃ reaction chamber that processes the hydrogen-nitrogen-mixture received to receive the hydrogen-nitrogen-mixture from the mixing unit and form a gas mixture comprising NH ₃ by a chemical exothermic reaction And the first component of one or more of the first components is an NH ₃ reaction chamber.

Gas mixture containing NH ₃ is can be directed to a separator for separating the NH ₃ from a gas mixture containing NH _3, NH ₃ stored NH ₃ and the rest of the hydrogen to be stored in the vessel to produce a mixture of nitrogen.

The remaining hydrogen-nitrogen mixture can be re-compressed and re-compressing the remaining hydrogen-nitrogen-nitrogen-nitrogen-mixture The mixture of claim 2 hydrogen from the mixing unit of the mixer to form a mixture of hydrogen be accommodated by the NH ₃ source .

The second component of one or more of the second components may be a second mixer.

The NH ₃ stream from the NH ₃ storage vessel can be directed to the NH ₃ cracker before the NH ₃ stream reaches the NH ₃ generator. NH ₃ cracker, NH ₃ - hydrogen - do the mixture NH ₃ storage portion modified (partial cracking) of NH ₃ received from the vessel to form and NH _3-hydrogen mixture is NH ₃ stream in a NH ₃ generator for combustion (stream ).

The use of NH ₃ crackers allows to provide NH ₃ -hydrogen-gas mixtures to NH ₃ generators having better combustion characteristics.

The second component of one or more of the second components is an NH3 cracker. This has the effect of a higher efficiency of NH3 reforming since the working principle of the NH3 cracker is based on the consumption of heat. As a result, the overall efficiency of the system is improved.

A main control unit of the system can control the generation of energy by the generation and / or NH ₃ generators of NH ₃ to be stored in the NH ₃ storage vessel.

Again, for example, control may be achieved by regulating the flow of energy provided to the H ₂ -N ₂ - production unit and, via the mixers, compressors, or other components that control or affect the manufacture of H ₂ and N ₂ , , And / or by adjusting the temperature in the NH ₃ reaction chamber.

The main control unit generates the energy due to the actual power demand and / or NH production and / or NH ₃ generators of NH ₃ to be stored in the _third storage vessel, depending on the amount of current generated energy by Renew abrasion energy source for at least the energy grid Can be controlled.

Further, the main control unit,

- preferably simultaneously reduce the production of NH _{3 to} be stored in the NH ₃ storage vessel during low renewable energy input periods from the renewable energy source and / or increase the production of energy,

- preferably simultaneously increase the production of NH _{3 to} be stored in the NH ₃ storage vessel during high renewable energy input periods from the renewable energy source and / or reduce the production of energy.

The main control unit controls generation of NH ₃ and generation of energy. For example, in the case of renewable energy sources, for example, during periods of low energy generation and in the case of a windmill during weak wind phases, the supply by the renewable energy source may not be sufficient , The main control unit can power up the NH ₃ generator to provide more energy to the energy grid. During periods during which the renewable energy source generates a large amount of energy, for example, during windy paces, the main control unit powers down the NH ₃ generator because the renewable energy source provides sufficient energy for the grid power down). However, the main control unit will increase the production and storage of NH _3.

A device that is "fluidly connected" to another device means that fluid can be transferred from the device to the additional device through a connection between the devices, e.g., a tube. In the present application, the fluid may be a gas as well as a liquid.

Hereinafter, the present invention will be described in detail with reference to Fig. In the different drawings, the same reference numerals refer to the same components.
Figure 1 shows a system for load balancing of an intermittently renewable energy source.
It shows a further embodiment of a system with recirculation of the gas mixture 2 is the remaining H ₂ -N _2.
Figure 3 shows a variant of a further embodiment of the system.

The system 100 shown in FIG. 1 includes a renewable energy source 10, such as a windmill or a windfarm having a plurality of individual windmills. Alternatively, the renewable energy source 10 may also be a solar power plant or any other power plant suitable for generating energy from a renewable feedstock such as water, wind or solar energy. Hereinafter, the system 100 is described under the assumption that the renewable energy source 10 is a windmill. However, this should not have any limiting effect on the present invention.

The wind mill 10 is connected to the energy grid 300 to supply the energy generated by the wind mill 10 to the grid 300. In this application, an amount of energy 1 ", which is at least a fraction of the energy 1 produced by the wind mill 10, is provided to the energy grid 300 to meet the energy demands of the consumers of the energy grid 300 Energy grid 300. Energy grid 300 may also be referred to as normally having access to other energy sources.

However, the remaining amount of energy 1 'of the generated energy 1 is greater than the amount of energy 1' in the system 100 for operating the hydrogen-nitrogen-producing unit 20 (H ₂ -N ₂ - Can be used.

In particular, when excess energy is available, that is, when the energy (1) produced by the renewable energy source (10) exceeds the energy demand of the energy grid (300) for the renewable energy source (10) Energy may be directed to the unit 20 to operate the H ₂ -N ₂ - production unit 20. The amount of energy (1 ') fed to the H ₂ -N ₂ - production unit 20 depends on the energy demands of the consumers supplied by the energy grid 300. That is, if there are high demands, for example. During peak times, 100% of the energy 1 produced by the wind mill 10 must be fed to the electric grid 300 to cover demand. In contrast, in the case of very low demands, for example, during night hours, 100% of the electricity 1 generated by the wind mill 10 may be available for use in the system 100 and may be H ₂ -N ₂ < / RTI > production unit 20 as shown in FIG.

This management and distribution of the energy 1 from the wind mill 10 is accomplished by the energy distribution unit 11. The energy distribution unit (11) receives energy (1) from the wind mill (10). As indicated above, certain ratios of energy (1) may be provided to the energy grid (300) and / or to the system (100) and to the H ₂ -N ₂ production unit (20), depending on the energy demand situation of the energy grid Respectively. Thus, the energy distribution unit 11 receives the energy 1 provided by the renewable energy source 10 and the energy 1 from the energy grid 300 and / or H ₂ -N ₂ -O ₂ - Unit 20, where the distribution is dependent on the energy demand situation of the energy grid 300.

For example, if a large amount of energy is required in the grid 300, most or all of the energy (1) will be directed to the grids 300, and only a small amount of energy (1 ') only H ₂ -N ₂ - Preparation unit Lt; / RTI > Most or all of the energy (1) provided by the renewable energy source 10 can be used to generate NH ₃ , if only a small amount of energy is required in the grid 300. Thus, a large amount of energy (1 ') will be provided to the H ₂ -N ₂ -O ₂ - producing unit 20.

As mentioned above, the abrasion amount of the energy Renew (1) produced by the energy source (10) 1 _'2 -N system 100 and H in order to achieve the generation of NH _{3 2} - Manufacturing unit ( 20. The H ₂ -N ₂ - production unit 20 includes a hydrogen electrolyzer 21 and an air separation unit 22.

H ₂ -N ₂ - hydrogen electrolytic cell 21 of the production unit 20 is used to generate hydrogen (4) and oxygen (6) through the electrolysis (electrolysis) of the water (2). The hydrogen electrolytic bath 21 is supplied with water 2 from an arbitrary source (not shown) and is operated using energy 1 'from the wind mill 10. The oxygen 6 is a by-product of the electrolyzer 21, which can be vented and released to the atmosphere.

An air separation unit (ASU) 22 of the H ₂ -N ₂ - production unit 20 is used for the production of nitrogen 5. The energy 1 'provided by the wind mill 10 is used to operate the ASU 22 and the ASU 22 utilizes conventional air separation techniques to separate the nitrogen 5 from the air 3. The remaining components of the air 3, i. E., Oxygen and others, may be released to the atmosphere.

Therefore, the wind mill 10 forms the hydrogen 4 together with the hydrogen electrolytic cell 21, and the electrolysis of the water 2 and the separation of the nitrogen 5 from the air 3 by using the ASU 22 (1 ') for both of them.

Both hydrogen (4) and nitrogen (5) are then directed to the mixing unit (30) of the system (100). The mixing unit 30 includes a temporary storage unit 31, a mixer 32, and a compressor 33. First, the hydrogen 4 and the nitrogen 5 pass through the temporary storage unit 31 before being mixed in the mixer 32. The resulting hydrogen-nitrogen gas mixture (8) (H ₂ -N ₂ gas mixture) is subsequently compressed to a pressure (atmospheres) of 50 or greater in the compressor (33).

Ammonia (NH ₃ ) can now be formed by treating the compressed H ₂ -N ₂ - gas mixture 8 in the presence of a catalyst at elevated temperatures. This is accomplished in the NH ₃ reaction chamber 41 of the NH ₃ source 40 of the system 100. The compressed H ₂ -N ₂ -gas mixture 8 from the mixing unit 30 and from the compressor 33 is directed to the NH ₃ reaction chamber 41. The reaction chamber 41 includes one or more NH ₃ reaction beds 42 operated at an elevated temperature, for example, 350 to 450 ° C. In the chemical exothermic reaction, the NH ₃ reaction chamber 41 produces a mixture of NH ₃ and further, nitrogen (N ₂ ) and hydrogen (H ₂ ) from the H ₂ -N ₂ -gas mixture from the mixer 30 . That is, the NH ₃ reaction chamber releases the NH ₃ -H ₂ -N ₂ -gas mixture 9.

For example, suitable catalysts may be based on ruthenium rather than iron or ron based catalysts promoted with K ₂ O, CaO, SiO ₂ and Al ₂ O ₃ .

The NH ₃ -H ₂ -N ₂ mixture 9 is directed to a separator 43 of the NH ₃ source 40, such as a condenser where NH ₃ is NH ₃ -H ₂ -N ₂ - mixture (9). Accordingly, the separator 43 is prepared to NH _3, which NH ₃ storage vessel 44 and the remaining NH ₃ in H ₂ -N ₂ source (40) is sent to a gas mixture (8 ').

A broad knowledge base can be assumed to exist both in the storage and transport of ammonia (Ammonia). This is equally applicable to the handling and transport of hydrogen, nitrogen and hydrogen-nitrogen-mixtures. Thus, the various ducts connecting all the components of the system 100 to direct NH ₃ and other gases or mixtures of gases as well as the NH ₃ storage vessel 44 are not described in detail.

As described above, the separator 43 is provided by the NH ₃ -H NH ₃ reaction chamber (41) ₂ -N ₂ - mixture of (9) and generating an H ₂ -N ₂ NH ₃ from a gas mixture ( 8 ') remains. 2 and 3, this remaining H ₂ -N ₂ -gas mixture 8 'is recycled for the production of NH _{3 in} the NH ₃ reaction chamber 41, Recycled to be utilized.

To this end, the system 100 of the present embodiment as shown in FIG. 2 includes an additional reprocessing unit 50 having a recompressor 51 and a mixer 52. Further, according to the present invention This embodiment is a compressed H ₂ -N ₂ from the compressor (33) of the gas mixture 8 is NH ₃ reaction chamber 41 is not only re-processing unit 50 is passed directly to And arrives at the NH ₃ reaction chamber 41 through the mixer 52. The remaining H ₂ -N ₂ of the separator (43) with gas mixture (8 ') is passed to a re-compressor 51 of the re-processing unit 50 of the system 100. In the gas mixture (8 ') of 50 or by compressing the air pressure of the excess NH ₃ reaction chamber 41 and the separator 43 - as in the compressor 33, the compressor member 51 is the remaining H ₂ -N ₂ Causing pressure losses during processing. The recompression remaining H ₂ -N ₂ - gas mixture (8 ') and is then passed to a mixer 52, wherein the re-compressing the remaining H ₂ -N ₂ - gas mixture (8') is a mixer 30, and And the fresh H ₂ -N ₂ -gas mixture 8 from the compressor 33, respectively. The mixer 52 then produces a mixture 8 of H ₂ -N ₂ -gas mixtures 8, 8 'to be directed to the NH ₃ reaction chamber 41. Subsequently, the gas mixture is treated as described above in the NH ₃ source 40 to produce NH ₃ and again the remaining H ₂ -N ₂ -gas mixture 8 '.

Fig. 3 shows a modification of the embodiment shown in Fig. The remaining H ₂ -N ₂ - gas mixture (8 ') is fed directly to the mixer 32 of the mixing unit 30 to mix with the hydrogen and nitrogen flows from the temporary storage unit (31). A separate reprocessing unit 50 is not used.

Subsequently, again referring to Fig. However, the details and features described below are also applicable to the embodiments and variations shown in Figs. 2 and 3.

NH ₃ storage vessel 44 is NH ₃ gas stream is stored NH ₃ generators and (power generator) able to be set to transport the NH ₃ in 200 NH ₃ generator 200, fluid from the tank 44 connected . Ammonia can be used in a number of different combustion cycles, such as a Brayton cycle or a Diesel cycle. However, at the power level of the windmill or wind farm, it may be appropriate to use a gas turbine for combustion of ammonia for the generation of electrical energy, where the bright cycle is a gas turbine solution, Lt; / RTI > Accordingly, the NH ₃ generator 200 may be a gas turbine configured for combustion of ammonia. It is initially shown that conventional gas turbines with only a slight modification of the burner would be appropriate.

Gas turbine 200, thereby burning the NH ₃ in each combustion chamber 201 and the and the gas turbine of the NH ₃ generator 200, the energy (1 ''') NH ₃ storage vessel 44 for the production of. This energy (1 "') can then be fed into the energy grid (300).

The system 100 shown in the Figures also includes an optional NH ₃ cracker 45 wherein the NH ₃ cracker 45 is located between the NH ₃ storage vessel 44 and the NH ₃ generator 200 The NH ₃ storage vessel 44 and the NH ₃ generator 200. NH ₃ cracker (45) is NH ₃ accommodating the NH ₃ from the storage vessel 44, and this NH ₃ - hydrogen mixture (NH _3, H ₂₎ to perform a partial modification of the NH ₃ contained to form NH ₃ crackers Passes through the catalyst bed 46 of the catalyst bed 45. NH _3-hydrogen mixture (NH _3, H ₂₎ are, subsequently, as described above, is directed to the NH ₃ generator 200 for combustion.

It may be mentioned that the operation of the system 100 as described above may be possible without the NH ₃ cracker 45. However, utilization of the NH ₃ cracker 45 allows the NH ₃ - hydrogen-gas-mixture to be provided to the NH ₃ generator 200 having better combustion characteristics.

The system 100 also includes a main control unit 60 and the main control unit 60 is configured to control various components of the system 100 (Not shown in Figure 1 to avoid confusion). In particular, the main control unit 60 controls the production of the energy (1 ''') production process and the NH ₃ for the energy grid 300.

If the energy supply from the windmill 10 and the energy management unit 11 to the system 100 is too low, for example due to high energy demands in the energy grid 300, Gas mass in the system 100 by powering down the H ₂ -N ₂ - production unit 20 with the compressors 33, 51 and / or the electrolyzer 21 and the ASU 22. Reducing the flow and reducing the production of NH ₃ . Thus, less energy (1 ') is directed from the wind mill (10) to the system (100) and more energy (1'') is available for the energy grid (300). Further, the main control unit 60 increases the NH ₃ to the NH ₃ mass flow generator 200 from the NH ₃ storage vessel (44). As a result, the NH ₃ generator 200 ensures the generation of the energy 1 '''required by the energy grid 300 in order to ensure a stable energy supply in the electric grid 300 to achieve a balanced load .

If the supply of energy from the windmill 10 and the electricity management unit 11 to the system 100 is too high, for example, the windmill 10 generates more energy than is required by the energy grid 300 The main control unit 60 increases the gas mass flow of the system 100 by providing more power to the compressors 33 and 51, the electrolyzer 21 and / or the ASU 22, ) enhances the production of NH ₃ in. This causes an increased production of NH ₃ that is stored in a NH ₃ storage vessel (44). However, the generation of energy 1 '''from NH ₃ generator 200 for energy grid 300 can be reduced, not increased.

The main control unit 60 is also connected to the NH ₃ generator (not shown) based on the energy consumption and demand in the electric grid 300 and on the basis of the available power supply by any energy sources available for the grid 300 200 to control the generation of power. Thus, when the available power supply in the grid 300 is less than the demand, the main control unit 60 will power up the NH ₃ generator 200 to cover demand. The main control unit 60 powers down the NH ₃ generator 200 and the NH ₃ generation is performed by the H ₂ -N ₂ production unit 20 when the available power supply in the grid 300 is higher than the demand, And by increasing the mass flow in the system 100, the NH ₃ storage vessel 44 can be recharged.

In other words, the main control unit 60 reduces the generation of NH ₃ to be directed to the NH ₃ storage vessel 44 and / or during periods of too low renewable energy input 1, Or to increase the generation of energy (1 "') during high energy demand periods in energy grid (300). In addition, the main control unit 60 may be configured to increase the production of NH ₃ to be directed to the NH ₃ storage vessel 44 and / or during periods of too high renewable energy input 1, Is configured to reduce the generation of energy (1 "') during low energy demand periods in grid (300).

Thus, the control performed by the main control unit 60 is dependent on the actual power demand in the energy grid 300, the energy 1 generated by the renewable energy source 10 and / (1 ') from the available renewable energy source (10).

Correspondingly, the main control unit 60 must be connected to the energy grid 300 in order to receive information about the current energy demand and coverage at the energy grid 300. The main control unit 60 is also connected to the energy distribution unit 11 and / or the wind mill 10 and to the energy (1, 1 ') available for use in the system 100 and the grid 300. [ , 1 '').≪ / RTI > The main control unit 60 is connected to the H ₂ -N ₂ production unit 20 to control the amount of hydrogen and nitrogen produced and to the various mixers and compressors Must be connected. Using this, the main control unit 60 can control the production of NH ₃ to be directed to the NH ₃ storage vessel (44). In addition, the main control unit 60, respectively, is connected to the NH ₃ generator 200, and the NH ₃ storage vessel (44) to control the supply of the NH ₃ to the NH ₃ cracker (45). In addition, the main control unit 60 is connected to the NH ₃ generator 200 itself to regulate energy generation by NH ₃ combustion.

However, in each of the different stages and components of the system 100, a waste heat is generated that can be utilized to operate other stages or components of the system 100. To this end, the system 100 includes a heat distribution system 91, 92, 93, 94 with one or more heat exchangers 92, 93, 94. One or more heat exchangers of each of the heat exchangers 92, 93 and 94 may be connected to the heat exchanger 22 from the first component 21, 41, 200 allocated during operation of one component 21, 41, Is assigned and thermally contacted with a first component of at least one of the one or more first components (21, 41, 200) of the system (100) For example, the process sequence may be waste heat or other heat that is generated during operation of the corresponding first component 21,41, 200 and not used for operation of the first component 21,41, 200. Accordingly, the components of system 100 qualify to be such a first component when components generate heat during operation of the first component.

In addition, the first component of each one of the one or more first components 21, 41, 200 is assigned to the heat exchanger of at least one of the one or more heat exchangers 92, 93, 94, . The heat generated by the first component 21, 41, 200 is transferred to the assigned heat exchanger 92, 93, 94 due to thermal contact.

One or more heat exchangers of each of the heat exchangers 92, 93, and 94 may communicate at least a portion of the process sequence received from the assigned first component to one or more of the second components 30, 32, 45, 52). In this context, components of the system 100 may be configured such that when the component consumes heat during operation of the component, or when at least improved operation and / or efficiency is caused when an elevated operating temperature can be provided, 30, 32, 45, 52). Both the heat to be consumed by the second component and the heat necessary to improve the operation or efficiency of the component may be provided by the heat exchangers 92, 93 and 94.

As shown in Figures 1, 2 and 3, various different combinations of the first and second components of the system 100 are possible.

Specifically, the first heat exchanger 92 is assigned to the hydrogen electrolyzer 21 and is in thermal contact therewith. Accordingly, at least a portion of the heat generated during the operation of the hydrogen electrolyzer 21 is absorbed by the first heat exchanger 92 to be provided to the second component.

The second heat exchanger 93 is assigned to the NH ₃ reaction chamber 41 and is in thermal contact. In the present application, reaction beds 42 produce heat during operation. At least a portion of the heat is absorbed by the second heat exchanger (93).

The third heat exchanger 94 may be arranged in the exhaust system of the generator 200 to which the NH ₃ generator 200 is assigned and in thermal contact and for example waste heat is discharged. At least a portion of the waste heat is absorbed by the third heat exchanger (94).

The heat collected by the heat exchangers 92, 93, 94 may be used for various components of the system 100. For example, the pre-heating of the input gases to be treated in the mixers 32, 52, i.e. the hydrogen, nitrogen and / or hydrogen-nitrogen mixture, Lt; RTI ID = 0.0 > synthesis process, < / RTI > Similarly, the heat from one or more of the heat exchangers 92, 93, 94 may advantageously be used in an NH ₃ cracker to heat the catalyst bed 46.

Accordingly, one or the heat exchanger of the excess (92, 93, 94) of the column the mixture of the one or more collected by the (32, 52), the mixing unit 30 and / or NH ₃ cracker (45 ). ≪ / RTI >

In a basic approach, the heat collected by a particular one of the heat exchangers 92, 93, 94 may be combined with a particular second component, such as one of the mixers 32, 52, ) Or NH ₃ cracker 45, respectively. Thus, a fixed connection between a particular heat exchanger and a particular second component for the transfer of heat will be established. For example, (not shown), in certain embodiments, heat exchangers 92, 93, 94 are connected to mixer 32. In another particular embodiment, the heat exchangers 92, 93, 94 are connected to the mixer 52. In a further specific embodiment, the heat exchangers 92, 93 and 94 are connected to the mixer 45. Other fixed combinations of heat exchangers 92, 93, 94 and second components 30, 32, 45, 52 are possible.

However, direct assignment of one or more first components and one or more second components 30, 32, 45, 52 of each of the assigned heat exchangers 92, 93, 94, Thereby inducing flexibility. Thus, the system 100 is capable of generating heat of one or more of the heat exchangers 92, 93, 94 from one or more of the heat exchangers to one or more of the second components 30, 32, 45, And includes a heat collector and a transmitter 91 for managing forwarding and / or distribution. To this end, the heat collector and feeder 91 may include a corresponding switch 96 and a thermal control system 95 for controlling the switch 96. The thermal control system 95 may be managed by the main control system 60.

The thermal control system 95 controls the distribution of heat to the second components 30, 32, 45, 52 so that the second components 30, 32, 45, 52 operate at their optimal operating points. In this context, under constellation may occur as each of the second components 30, 32, 45, 52 becomes unable to operate at optimal operating points. In that case, the thermal control system 95 will distribute the available heat to achieve the best possible overall performance and efficiency of the system 100, under given circumstances.

Finally, the main control unit 60 can be used to control the optimum operating points of the heat exchangers 92, 93, 94, the heat collector and transporter 91, and / or the NH ₃ cracker 45.

Claims (25)

A system for providing energy (1 ", 1"') to an energy grid (300) based on energy (1) provided by a renewable energy source (10) 100)
- H ₂ -N ₂ - production unit 20 for producing hydrogen 4 and nitrogen 5 The H ₂ -N ₂ production unit 20 is connected to the renewable energy source 10 (1 ')< / RTI >
A mixing unit configured to receive and mix the hydrogen (4) and nitrogen (5) produced by the H ₂ -N ₂ - production unit (20) to form a hydrogen- unit 30,
NH ₃ source 40 for receiving and processing the mixture of 8-N-NH ₃ gas mixture (gas mixture) (9) wherein the hydrogen to generate containing the NH ₃ source 40 NH ₃ And an NH ₃ storage vessel (44) for storing at least a portion of the NH ₃ of the gaseous mixture,
The energy grid 300, the energy (1 ''') NH3 generator (power generator) 200 for generating for said NH ₃ generator 200 including the NH ₃ from the NH ₃ storage vessel 44 Is connected to an NH ₃ storage vessel (44) to receive a gas stream and the NH ₃ generator (200) is operatively connected to the gas stream to produce energy (1 ''') for the energy grid Comprising a combustion chamber (201) for combusting the received NH ₃ , and
Energy is provided to the energy grid based on the energy provided by the renewable energy source, including heat distribution systems 91, 92, 93, 94 having one or more heat exchangers 92, 93, A system for providing,
A heat exchanger of one or more heat exchangers (92, 93, 94), each of which receives a process heat from at least one first component assigned during operation of the at least one first component, Is thermally contacted and assigned to a first component of at least one of the one or more first components (21, 41, 200) of the system (100)
Each of the one or more heat exchangers 92, 93, and 94 may include at least a portion of the received process sequence in one or more of the second components 30, 32, 45, 52 of the system 100, A system for providing energy to an energy grid based on energy provided by a renewable energy source arranged and configured to deliver to at least one second component of the system,
The system 100 is fluidly coupled to NH ₃ cracker (cracker) further comprises a unit 45, the NH ₃ cracker 45 is the NH ₃ storage vessel 44 and the NH ₃ generator 200, the The NH ₃ cracker (45)
- receiving a flow rate of NH ₃ from the NH ₃ storage vessel (44)
- NH ₃ - performs a mixture reforming part (partial cracking) of (NH _3, H ₂₎ accommodated so as to form NH _3, and - hydrogen
- for combustion the NH ₃ -, and configured and arranged to direct a mixture, wherein the NH ₃ to the generator (200) - Hydrogen
Characterized in that the second component (45) of one or more of the second components (30, 32, 45, 52) is an NH ₃ cracker (45)
A system for providing energy to an energy grid based on energy provided by a renewable energy source. The method according to claim 1,
Characterized in that the first component (200) of one or more of the first components (21, 41, 200) is the NH ₃ generator (200)
A system for providing energy to an energy grid based on energy provided by a renewable energy source. 3. The method according to claim 1 or 2,
Wherein the second component (30) of one of the one or more second components (30,32, 45,52) is the mixing unit (30) and the transferred portion of the process stream comprises hydrogen (4) (5). ≪ RTI ID = 0.0 >
A system for providing energy to an energy grid based on energy provided by a renewable energy source. 3. The method according to claim 1 or 2,
The H ₂ -N ₂ - production unit (20)
A hydrogen electrolyzer (21) for producing the hydrogen (4), and an air separation unit (22) for producing the nitrogen (5)
The hydrogen electrolyzer 21 is adapted to receive the water 2 and the energy 1 'produced by the renewable energy source 10 and to produce the hydrogen 4 by electrolysis ,
The air separation unit 22 is configured to receive the energy 1 'produced by the air 3 and the renewable energy source 10 and to separate the received air 3 to produce the nitrogen 5 ≪ / RTI >
A system for providing energy to an energy grid based on energy provided by a renewable energy source. 5. The method of claim 4,
Characterized in that the first component (21) of one or more of the first components (21, 41, 200) is the hydrogen electrolyzer (21)
A system for providing energy to an energy grid based on energy provided by a renewable energy source. 3. The method according to claim 1 or 2,
The mixing unit 30 is fluidly connected to the H ₂ -N ₂ - production unit 20 to receive the hydrogen 4 and nitrogen 5 produced therein,
The mixing unit (30)
- a mixer (32) for mixing the hydrogen (4) and the nitrogen (5) to form the hydrogen-nitrogen mixture, and
- characterized in that it comprises a compressor 33 for compressing a mixture of nitrogen-hydrogen from the mixer 32 to form a mixture (8), wherein the NH ₃ source 40, compressed hydrogen to be directed to nitrogen- ,
A system for providing energy to an energy grid based on energy provided by a renewable energy source. The method according to claim 6,
Characterized in that the second component (32) of one of said one or more second components (30, 32, 45, 52) is said mixer (32)
A system for providing energy to an energy grid based on energy provided by a renewable energy source. 3. The method according to claim 1 or 2,
The NH ₃ source 40 receives the hydrogen-nitrogen-mixture 8 from the mixing unit 30 and processes the received hydrogen-nitrogen-mixture 8 to form an exothermic chemical reaction And an NH ₃ reaction chamber 41 configured to form the gas mixture 9 comprising NH ₃ by one or more of the one or more first components 21, Characterized in that one first component (41) is the NH ₃ reaction chamber (41)
A system for providing energy to an energy grid based on energy provided by a renewable energy source. 9. The method of claim 8,
The NH ₃ source 40 further comprises a separator 43 for receiving the gas mixture 9 containing NH ₃ from the NH ₃ reaction chamber 41,
The separator 43 is configured to separate NH ₃ from the gas mixture 9 comprising NH ₃ such that the NH ₃ and the remaining hydrogen-nitrogen-mixture 8 'are produced,
The separator 43 is characterized in that the fluid connection to the NH ₃ storage vessel 44 in order to direct the production of NH ₃ to the NH ₃ storage vessel 44,
A system for providing energy to an energy grid based on energy provided by a renewable energy source. 10. The method of claim 9,
Further comprising a reprocessing unit (50) for reprocessing the remaining hydrogen-nitrogen mixture (8 ') using a recompressor (51) and a second mixer (52)
- said recompressor (51) is fluidly connected from said separator (43) to receive and compress said remaining hydrogen-nitrogen mixture (8 ') from said separator (43)
- said second mixer (52) is fluidly connected to said recompressor (51) for receiving said compressed hydrogen-nitrogen-mixture (8 ') from said recompressor (51)
- said second mixer (52) is fluidly connected to said mixing unit (30) to receive said hydrogen-nitrogen mixture (8) from said mixing unit (30)
- said second mixer (52) comprises a hydrogen-nitrogen mixture (8) from said mixing unit (30) to form said hydrogen-nitrogen mixture (8) to be provided to said NH ₃ source Is adapted to mix said compressed remaining hydrogen-nitrogen-mixture (8 ') from recompressor (51)
A system for providing energy to an energy grid based on energy provided by a renewable energy source. 11. The method of claim 10,
Characterized in that the second component (52) of one or more of the second components (30, 32, 45, 52) is the second mixer (52)
A system for providing energy to an energy grid based on energy provided by a renewable energy source. 10. The method of claim 9,
The separator 43 is fluidly connected to the mixing unit 30 to direct the remaining hydrogen-nitrogen-mixture 8 'from the separator 43 to the mixing unit 30, a mixture (8 '), the NH ₃ is the hydrogen to be received by the source 40 - manufacturing unit of hydrogen (4) and nitrogen (from the 5 (20) - H ₂ -N ₂ mixture to form a 8-N ) And the mixing unit (30).
A system for providing energy to an energy grid based on energy provided by a renewable energy source. 3. The method according to claim 1 or 2,
Wherein the energy distribution unit (11) further comprises an energy distribution unit (11) that receives the energy (1) provided by the renewable energy source (10) And the H ₂ -N ₂ - production unit (20), wherein the distribution is dependent on the energy demand situation of the energy grid (300).
A system for providing energy to an energy grid based on energy provided by a renewable energy source. A method for providing energy (1 ", 1 "') to an energy grid (300) based on energy (1) provided by a renewable energy source (10)
At least a portion 1 'of energy 1 from the renewable energy source 10 is used to produce hydrogen 4 and nitrogen 5 from the H ₂ -N ₂ production unit 20,
The produced hydrogen 4 and nitrogen 5 are mixed in the mixing unit 30 to form a hydrogen-nitrogen-mixture 8,
- the hydrogen-nitrogen mixture (8) is processed by the NH ₃ source 40 to generate a gas mixture (9) containing the NH ₃ (processed),
NH ₃ of the gas mixture 9 containing NH ₃ is stored in the NH ₃ storage vessel 44,
- the NH from the _third storage vessel (44) NH ₃ stream is NH ₃ generator (200 for combusting the NH ₃ in the NH ₃ stream to produce energy (1 ''') for the energy grid 300 ) Combustion chamber 201,
At least a portion of the sequence of processes generated in the first component of at least one of the one or more first components of the system 100 during operation of the at least one first component is one or more To a second component of at least one of the second components of the renewable energy source, the energy being provided to the energy grid,
The NH ₃ stream from the NH ₃ storage vessel 44 is directed to the NH ₃ cracker before the NH ₃ stream reaches the NH ₃ generator 200,
Said NH ₃ cracker 45 NH ₃ - hydrogen - performing a mixture (NH _3, H ₂₎ received from the NH ₃ storage vessel 44 so as to form a modified part of the NH ₃ (partial cracking), and and
The NH ₃ -hydrogen mixture is directed to the NH ₃ generator 200 for combustion as an NH ₃ stream,
Characterized in that the second component (45) of one or more of the second components (30, 32, 45, 52) is the NH ₃ cracker (45)
A method for providing energy to an energy grid based on energy provided by a renewable energy source. 15. The method of claim 14,
Characterized in that the first component (200) of one or more of the first components (21, 41, 200) is the NH ₃ generator (200)
A method for providing energy to an energy grid based on energy provided by a renewable energy source. 16. The method according to claim 14 or 15,
Wherein the second component (30) of one or more of the second components (30,32, 45,52) is the mixing unit (30) and the transferred portion of the process stream comprises hydrogen (4) (5). ≪ RTI ID = 0.0 >
A method for providing energy to an energy grid based on energy provided by a renewable energy source. 16. The method according to claim 14 or 15,
The hydrogen (4) is produced in the hydrogen electrolyzer (21) of the H ₂ -N ₂ - production unit (20) and is supplied to the first one of the one or more first components (21, 41, 200) Characterized in that the component (21) is the hydrogen electrolyzer (21)
A method for providing energy to an energy grid based on energy provided by a renewable energy source. 16. The method according to claim 14 or 15,
The NH ₃ source 40 receives the hydrogen-nitrogen-mixture 8 from the mixing unit 30 and processes the received hydrogen-nitrogen-mixture 8 to form an exothermic chemical reaction And an NH ₃ reaction chamber 41 configured to form the gas mixture 9 comprising NH ₃ by one or more of the one or more first components 21, Characterized in that one first component (41) is the NH ₃ reaction chamber (41)
A method for providing energy to an energy grid based on energy provided by a renewable energy source. 16. The method according to claim 14 or 15,
The gas mixture containing NH ₃ (9) is NH ₃ to be stored in the gas mixture is directed to separator 43 for separating the NH ₃ from the (9), the NH ₃ storage vessel (44) containing NH ₃ And the remaining hydrogen-nitrogen-mixture (8 ') are produced.
A method for providing energy to an energy grid based on energy provided by a renewable energy source. 20. The method of claim 19,
The remaining hydrogen-nitrogen-mixture 8 'is recompressed and the recompressed remaining hydrogen-nitrogen-mixture 8' is recycled to the hydrogen-nitrogen-mixture 8 to be accommodated by the NH ₃ source 40. Is mixed with the hydrogen-nitrogen-mixture (8) from the mixing unit (30) in a second mixer (52) to form a hydrogen-
A method for providing energy to an energy grid based on energy provided by a renewable energy source. 21. The method of claim 20,
Characterized in that the second component (52) of one or more of the second components (30, 32, 45, 52) is the second mixer (52)
A method for providing energy to an energy grid based on energy provided by a renewable energy source. 16. The method according to claim 14 or 15,
A second component (30) of one or more of the second components (30, 32, 45, 52) is configured for mixing hydrogen (4) and nitrogen (5) to form a hydrogen- Characterized in that it is a mixer (32) of the mixing unit (30), wherein the transferred portion of the process heat is utilized for mixing hydrogen (4) and nitrogen (5)
A method for providing energy to an energy grid based on energy provided by a renewable energy source. delete delete delete

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